The LARP which forms the backbone of this quirkily inventive show turns out to be the least interesting part of the enterprise. 'A lesson in cooperation? Barf.' Conceived and shepherded by Jason Segel, its no surprise that the strengths of the show are its characters and the talented group of actors who portray them. Segel, Field and Benjamin are superb, while Eve Linfley is a revelation. Bingeing required.